| /* |
| * Copyright (C) 2006 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.am; |
| |
| import android.content.Intent; |
| import android.net.Uri; |
| |
| import java.io.PrintWriter; |
| import java.util.HashSet; |
| |
| /** |
| * Description of a permission granted to an app to access a particular URI. |
| * |
| * CTS tests for this functionality can be run with "runtest cts-appsecurity". |
| * |
| * Test cases are at cts/tests/appsecurity-tests/test-apps/UsePermissionDiffCert |
| * /src/com/android/cts/usespermissiondiffcertapp/AccessPermissionWithDiffSigTest.java |
| */ |
| class UriPermission { |
| final int uid; |
| final Uri uri; |
| int modeFlags = 0; |
| int globalModeFlags = 0; |
| final HashSet<UriPermissionOwner> readOwners = new HashSet<UriPermissionOwner>(); |
| final HashSet<UriPermissionOwner> writeOwners = new HashSet<UriPermissionOwner>(); |
| |
| String stringName; |
| |
| UriPermission(int _uid, Uri _uri) { |
| uid = _uid; |
| uri = _uri; |
| } |
| |
| void clearModes(int modeFlagsToClear) { |
| if ((modeFlagsToClear&Intent.FLAG_GRANT_READ_URI_PERMISSION) != 0) { |
| globalModeFlags &= ~Intent.FLAG_GRANT_READ_URI_PERMISSION; |
| modeFlags &= ~Intent.FLAG_GRANT_READ_URI_PERMISSION; |
| if (readOwners.size() > 0) { |
| for (UriPermissionOwner r : readOwners) { |
| r.removeReadPermission(this); |
| } |
| readOwners.clear(); |
| } |
| } |
| if ((modeFlagsToClear&Intent.FLAG_GRANT_WRITE_URI_PERMISSION) != 0) { |
| globalModeFlags &= ~Intent.FLAG_GRANT_WRITE_URI_PERMISSION; |
| modeFlags &= ~Intent.FLAG_GRANT_WRITE_URI_PERMISSION; |
| if (readOwners.size() > 0) { |
| for (UriPermissionOwner r : writeOwners) { |
| r.removeWritePermission(this); |
| } |
| readOwners.clear(); |
| } |
| } |
| } |
| |
| public String toString() { |
| if (stringName != null) { |
| return stringName; |
| } |
| StringBuilder sb = new StringBuilder(128); |
| sb.append("UriPermission{"); |
| sb.append(Integer.toHexString(System.identityHashCode(this))); |
| sb.append(' '); |
| sb.append(uri); |
| sb.append('}'); |
| return stringName = sb.toString(); |
| } |
| |
| void dump(PrintWriter pw, String prefix) { |
| pw.print(prefix); pw.print("modeFlags=0x"); |
| pw.print(Integer.toHexString(modeFlags)); |
| pw.print(" uid="); pw.print(uid); |
| pw.print(" globalModeFlags=0x"); |
| pw.println(Integer.toHexString(globalModeFlags)); |
| if (readOwners.size() != 0) { |
| pw.print(prefix); pw.println("readOwners:"); |
| for (UriPermissionOwner owner : readOwners) { |
| pw.print(prefix); pw.print(" * "); pw.println(owner); |
| } |
| } |
| if (writeOwners.size() != 0) { |
| pw.print(prefix); pw.println("writeOwners:"); |
| for (UriPermissionOwner owner : writeOwners) { |
| pw.print(prefix); pw.print(" * "); pw.println(owner); |
| } |
| } |
| } |
| } |